John W. Peterson jwpeterson
jwpeterson
/ netgen_test_01.cc
Created
October 22, 2015 16:16
Simple example code demonstrating calling netgen from libmesh
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| #include <fstream> | |
| #include <map> | |
| #include <cstdlib> // std::getenv() | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/point.h" | |
| #include "libmesh/cell_tet4.h" | |
| // #include "libmesh/exodusII_io.h" |
jwpeterson
/ netgen_test_02.cc
Created
October 22, 2015 16:18
Test demonstrating meshing a 2D surface with Netgen from within libmesh
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| #include <fstream> | |
| #include <map> | |
| #include <cstdlib> // std::getenv() | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/point.h" | |
| #include "libmesh/face_tri3.h" |
jwpeterson
/ andrew_yt.cc
Created
October 22, 2015 19:23
Evaluate solution at given point in Hex20 element.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/elem.h" | |
| #include "libmesh/cell_hex20.h" | |
| #include "libmesh/fe.h" | |
| #include "libmesh/fe_interface.h" | |
| using namespace libMesh; | |
| // This is an example hopfully showing YT people how to evaluate |
jwpeterson
/ Makefile
Created
October 22, 2015 19:49
Simple Makefile that can compile single file libmesh applications.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # This Makefile assumes you have libmesh built and installed in $LIBMESH_DIR. | |
| # If the user has no environment variable | |
| # called METHOD, he gets optimized mode. | |
| ifeq (x$(METHOD),x) | |
| METHOD := opt | |
| endif | |
| # installed libmesh location of libmesh-config script | |
| libmesh_config := $(LIBMESH_DIR)/bin/libmesh-config |
jwpeterson
/ netgen_test_04.cc
Created
October 23, 2015 19:19
Small example demonstrating meshing of constructive solid geometry (CSG) with Netgen via libmesh
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include <iostream> | |
| #include <fstream> | |
| #include <map> | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/point.h" | |
| #include "libmesh/cell_tet4.h" | |
| // NOTE: This example only works if you have built and installed |
jwpeterson
/ boundary_ids_test.cc
Created
November 10, 2015 21:39
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/ucd_io.h" | |
| #include "libmesh/mesh_generation.h" | |
| #include "libmesh/elem.h" | |
| using namespace libMesh; | |
| // Uncomment this or compile with -DOLD_STYLE_BOUNDARY_IDS to test | |
| // old-style boundary_ids() function. |
jwpeterson
/ test_svd.cc
Last active
December 8, 2015 00:14
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include "libmesh/libmesh.h" | |
| #include "libmesh/dense_vector.h" | |
| #include "libmesh/dense_matrix.h" | |
| #include "libmesh/getpot.h" | |
| #include "libmesh/perf_log.h" | |
| #include <Eigen/SVD> | |
| using namespace libMesh; |
jwpeterson
/ test_svd_least_squares.cc
Created
December 7, 2015 23:36
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| #include "libmesh/libmesh.h" | |
| #include "libmesh/dense_vector.h" | |
| #include "libmesh/dense_matrix.h" | |
| #include "libmesh/getpot.h" | |
| #include "libmesh/perf_log.h" | |
| #include <Eigen/SVD> | |
| using namespace libMesh; |
jwpeterson
/ detect_slit.cc
Last active
October 16, 2018 19:35
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // This utility code can be used to detect slits in a Mesh. A "slit" | |
| // is a zero-width gap between two elements which should actually be | |
| // neighbors. This can be caused by having duplicate nodes in a mesh | |
| // generated by Cubit. | |
| // | |
| // The following journal file should work in any recent version of Cubit | |
| // to generate a mesh with a bunch of duplicated nodes along an interface. | |
| // This is caused by the user forgetting to call "merge all" after setting | |
| // up his geometry. |
jwpeterson
/ ex4_boundary_second_derivs.cc
Created
February 17, 2016 22:58
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // C++ include files that we need | |
| #include <iostream> | |
| #include <algorithm> | |
| #include <math.h> | |
| // Basic include file needed for the mesh functionality. | |
| #include "libmesh/libmesh.h" | |
| #include "libmesh/mesh.h" | |
| #include "libmesh/mesh_generation.h" | |
| #include "libmesh/exodusII_io.h" |